Return Value

A KSPROPERTY_SYSAUDIO_DEVICE_INSTANCE property request returns STATUS_SUCCESS to indicate that it has completed successfully. Otherwise, the request returns an appropriate error status code.

Remarks

A KSPROPERTY_SYSAUDIO_DEVICE_INSTANCE set-property request opens the virtual audio device specified by the device ID contained in the property value. The last device to be opened is referred to as the current device.